Revert "powerpc: ppc4xx: remove lwmon5 support"

This reverts commit 8fe11b8901a31d11990488c82bc23612589d57be.

I'll add support to lwmon5 in the next patch and will remove
support for the broken lcd4_lwmon5 as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/board/lwmon5/MAINTAINERS b/board/lwmon5/MAINTAINERS
new file mode 100644
index 0000000..7402ab6
--- /dev/null
+++ b/board/lwmon5/MAINTAINERS
@@ -0,0 +1,7 @@
+LWMON5 BOARD
+M:	Stefan Roese <sr@denx.de>
+S:	Maintained
+F:	board/lwmon5/
+F:	include/configs/lwmon5.h
+F:	configs/lcd4_lwmon5_defconfig
+F:	configs/lwmon5_defconfig